Wolff Construction Cranes
Due to the way they specifically work, hydraulic truck cranes are different from other crane types. Rather than utilizing a winch in order to wind up cables to provide the lifting force, hydraulic cranes utilize oil instead. As oil is a type of fluid that retains its volume, it is incompressible. Therefore, this means it is amongst the most ideal types of fluids for pushing pistons towards the direction the force is going to be exerted.
The pressure generated by the hydraulic pump moves the piston. This particular action is maneuvered by the driver using the controls inside his cab. Normally, hydraulic truck cranes use a 2 gear pump.
The truck mounted crane is able to move from one location to another with little need for dismantling. The truck crane has one engine that controls both the crane and the truck.
Boom Telescope: The boom telescope is due to a specific hydraulic operation which allows the boom to retract or extend.
Jib: The jib is a latticed structure that extends from the boom.
Boom Swing: The boom swing is a big ball or roller which is connected to the carrier. It can swing 360 degrees in both directions. Hydraulic mechanisms provide swings at various speeds and control the swing in order to revolve the turntable gearbox.
Outrigger: The outrigger is a unit which helps the crane maintain its balance by using hydraulics to lift the truck.
Load Movement Indicator: In order to warn the operator that maximum weight is approaching, the load movement indicator's lights flash.
Pump: The pump is the mechanism responsible for steering the outrigger.
Steel Cables: The steel cables are reinforced and run through the boom and the jib. They could generate up to 6350 kg or 14,000 lbs.
Boom Elevation: The boom of the crane ascends with the use of double hydraulic cylinders that could be lowered and raised.
Rotex Gear: The rotex gear is operated by hydraulics and located under the cab. It allows the boom to swivel on this gear.
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